James eoss collins



H ,No. 749,425. Q PATBNTED JAN. 12, 1904.

J. R. COLLINS.

MANUFACTURE OF BAGS.

APPLICATION FILED JAN. 17,1903.

N0 MODEL.

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WITNESSfS YNE ms FETEHS co, PHOfD-l Ima. WASHINGTON. u. c.

Patented January 12, 1904.

JAMES ROSS COLLINS, OF LARGHMONT, NEW YORK.

MANUFACTURE OF BAGS.

SPECIFICATION forming part of Letters Patent No. 749,425, dated January12, 1904.

' Application filed January 17, 1903. Serial No. 139,415. (No model.)

T0 aZZ whom, it may concern:

Be it known that I, JAMES RossCoLLINs, a citizen of the United States ofAmerica, and a resident of Larchmont, in the county of Westchester, inthe State of New York, have invented Improvements in the Manufacture ofBags, of which the following is a specification. This invention relatesto bags for packing sugar, coffee, and like articles of commerce,

and the object of the invention is to produce cheaply and expeditiouslyan improved bag of two fibers-a relatively fine fabric, oftenclosely-woven cotton, whose function is to hold the contents in and tokeep them clean and dry, and a coarse outer fabric of burlap or the likefor strengthening purposes.

Burlap for bags is usually woven of a width corresponding to the heightof the bags to be made, and-the web is cut off into pieces equal to alittle more than double the width of the bag to be made. These raw cutedges are turned back on themselves to form hems, and stitches run alongthe sides through these four thicknesses of fabric to form the sides ofthe bag. The bottom is then either turned up and formed in similarmanner or simply stitched across through two thicknesses without turningup. When a two-fabric bag is wanted,-

the burlap and cotton used are commonly made separately into bags andare inserted one into the other or are made up together with the cottoninside and stitched along the same seam as the burlap by the samestitching. In the first-mentioned two-fabric bag the loose bag withinthe burlap bag must always be dragged up and held even with the burlapwhen it is to be filled. With the second style this difiiother.

culty is only half done away with, as one side of the bag is loose andbothersome. In

both styles there is no way of making sure' that the operator will makeboth bags of precisely the same capacity and cause the strain to betaken by the burlap, as it should, for there is a great tendency informing the turnedin edges to contract one bag more than the Myinvention is designed to overcome all these objections.

In the accompanying drawings, Figure 1 is a schematic side view of mymethod of making a two-fabric tube to be cut up into bags. Fig.

2 is a schematic plan view corresponding with Fig. 1. Fig. 3 is a viewof a completed bag. Fig. 4 is a sectional view on line 4: 4, Fig. 3, butdrawn to a larger scale. Fig. 5 is a View of a part of the sewed selvageedge of a bag.

A is a roll of burlap web with selvage edges.

Bis a roll of cotton webbing, and G is a tank of suitable adhesivepaste, with a roll R for the fabric and a rotary pasting-roller T.

D D are pressure or mangle rolls, and E E air or steam.

S is a sewmg-machme.

T is a turning plate or folder for doubling the fabric on itselflongitudinally along a central line, and P is a suitable printing means.

W is a drum on which the finished two-fabric tube may be wound up.

In operation a web of burlap a from the roll A is led under the roll Rand has adhesive paste deposited on its lower surface by rotary roller9'. The cotton web 6 from the roll B and the pasted burlap are led tothe pressure-rolls D D, by which the two webs are pressed together andcaused to adhere to each other, sufficient paste having been applied forthat purpose. From the pressurerolls the pasted double fabric is ledover a numberof drying-drums, as E E, &c., to a turning-plate T, whichcauses the fabric to be doubled upon itself or folded on a longitudinalcentral line, with selvage s laid against selvage .9. Then thesewing-machine S stitches a line of stitches a; through the fabricadjacent to the superposed selvages, as indicated in Figs. 4 and 5. If abag is to be, say, two feet long, the tube will be sliced up intolengths just enough longer to permit the bottom to be turned up andsewed. This may be done immediately as it comes from the machine S, orthe uncut tube may be wound up into a roll, as at W, or it may first beprinted, as at P, and then either cut off or rolled up.

While I prefer to employ both the cotton and burlap webbing withselvages, it will suffice to have only the burlap with selvages, inwhich case the selvages on the burlap answer for both fabrics.

By making the bag with selvage edges at one side instead of the bottom Iam enabled to place the stitches y close to the edge of the bag, and soavoid turning back any fabric for a hem along either edge, and I thussave considerable material on every bag manufactured. Furthermore, thefabrics are superposed and secured together under no stretching tension,so that when secured together they are unstretched. By securing the twodifferent fabrics together before making them up into a bag I insurethat both inner and outer bags shall be of the same size, and therebyserve to strengthen each other and leave no places where the strain willcome unequally, and by longitudinally folding the fabric, as shown, allstitching is done from the outside, and the completed bag comes from themachine with the burlap side out, making it unnecessary to turn it.

The principal advantages of this invention are, first, cheaper goods canbe used, because the strain is equally distributed over the two fabrics;second, both bags can be made at one operation and without the necessityof turning inside out; third, the cotton bag does not have to be placedafterwards inside the burlap bag; fourth, the cotton bag is also in thesame position as the burlap bag, as the two are one,

and in filling them, for instance, with sugar from a tube the workmandoes not have to reach down and find the cotton bag before he canproceed to fill either the cotton or the burlap.

I am aware that bags have been made of a paper interior pasted to theburlap outer bag; but this has proven of little use, as the paper tearsupon the stretching of the burlap and the bag produced is stiff andunpliable. My improved bag, however, has none of these disadvantages,being formed of two textile fabrics.

I claim asmy invention 1. A tube for the manufacture of bags, composedof two unstretched materials pasted together, each of said materialsconsisting solely of textile fabric, the united fabrics being foldedlongitudinally with their outer edges meeting at one side and securedtogether there by I stitching, substantially as described.

2. A tube for the manufacture of two-fabric bags, each ofsaid fabricsconsisting solely of a web of burlap and a web of cotton, bothunstretched and pasted together, the united fabrics being foldedlongitudinally with their outer edges meeting at one side and securedtogether there by stitching, substantially as described.

3. A bag made of two unstretched materials, pasted together, each ofsaid materials consisting solely of a textile fabric, the united fabricsbeing folded over each other along one side of the bag with the edges ofboth fabrics along the other side of the bag united together bystitching and a closure to one end of the tube, substantially asdescribed.

4. A bag made of two unstretched materials, pasted together, each ofsaid materials consisting solely of a textile fabric, the united fabricsbeing folded over each other along one side with the selvages united bystitching at the other side of the bag and a closure to one end of thetube, substantially as described.

5. A bag made of an outer web 'solel y of burlap and an inner web solelyof cotton, both unstretched and pasted together, the united fabricsbeing folded over along one side of the bag with the edges of bothfabrics stitched together along the other side of the bag and a closureto one end of the tube, substantially as described.

6. A bag made of an outer web solely of burlap and an inner web solelyof cotton, both unstretched and pasted together, the united fabricsbeing folded over along one side of the bag with the selvages along theother side of the bag united together there by stitching and a closureto one end of the tube, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JAMES ROSS COLLINS.

Witnesses:

M, IVIOCLEAN, WILLIAM E. STONE.

